(.2.).Standard.Positioning.Service
SQ or Sql Squelch
SQ Service.Quality
SQB Service.Quality/Billing.Processor
SQD Service.Quality.Data
SQL Structured.Query.Language
SQP Signal.Quality.Parameter
Squall Line A squall line is a line of thunderstorms and
developing.thunderstorms.
Squawk Reply.to.interrogation.signal.(XPD).
Squelch A.control.and/or.circuit.that.reduces.the.gain.in.
response of a receiver. The squelch is used to
eliminate.the.output.noise.of.the.receiver.when.a.
signal.is.not.being.received.
Squitter (.1.).The.random.pulse.pairs.generated.by.the. ground station as a filler signal. . ( 2 ) The transmission of a specified reply format.at.a.minimum.rate.without.the.need.to.be. interrogated..(Filler.pulses.transmitted.between. interrogations).[XPD]... (.3.).Spontaneous.Transmission.generated.once. per.second.by.transponders.
SR Service Request
SRADD Software Requirements And Design Description
SRAM Static.Random.Access.Memory
SRD Systems Requirements Document
SREJ Selective.Reject
SRM Selective.Reject.Mode
SRN Short.Range.Navigation-term.used.to.encompass. VOR/LOC/DME/MB Navigation, or a sub-set there-of.
SRP Selected.Reference.Point
SRR Satellite.Recognition.Receiver
SRT Satellite.Receiver.Transmitter
SRU Shop.Replaceable.Unit
S/S ShipSet
SSA System.Safety.Assessment
SSB Single.Sideband..An.AM.signal.that.has.a. reduced.carrier,.with.the.power.applied.to.a.single. sideband..Since.the.bandwidth.of.the.information-carrying.signal.is.reduced,.a.better.signal-to-noise. ratio.is.obtained.at.the.receiver.
SSCV/DR Solid-State.Cockpit.Voice/Data.Recorder
SSCVR Solid-State.Cockpit.Voice.Recorder
SSEC Static.Source.Error.Correction
SSFDR Solid-State.Flight.Data.Recorder
SSM Sign.Status.Matrix:.A.set.of.bits.in.an.ARINC.label. that.tell.the.status.of.that.label..The.status.can.be. normal,.fail,.test.or.no.computed.data.(NCD).
SSP SSR
SSSC
SSU ST sta STAB Standard
Atmosphere
Standby Mode
STAR STARS
Static Ports
Static Pressure
Static RAM
Static Source Error (SSEC)
STB
System.Signal.Processor Secondary.Surveillance.Radar..A.radar-type.
system that requires a transponder to transmit a
reply.signal. Single.Sideband.Suppressed.Carrier..A.SSSC.
signal is a band of audio intelligence frequencies
that.have.been.translated.to.a.band.of.radio.
frequencies without distortion of the intelligence
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